A US woman who shot and killed her husband and two adult children before taking her own life is thought to have committed the shocking crime as a result of being ostracised from the religion she was raised in.

A federal judge sentenced a former Arkansas judge Wednesday to five years in prison — a stiffer punishment than prosecutors recommended — after he admitted giving young male defendants lighter sentences in return for personal benefits that included sexual favours.

Every time I tell a mate I’m doing a story on cryptocurrency, they invariably ask me the same two questions: should they invest their own hard-earned money, and which cryptocurrency will get them a Lamborghini/yacht/island quickest?

In a 60 Minutes online exclusive, reporter Liz Hayes quizzed Australian Prime Minister Malcolm Turnbull on his relationship with the unpredictable Twitter aficionado and US president Donald Trump ahead of their meeting at the White House Friday.

AFL CEO Gill McLachlan has labelled comments by Collingwood president Eddie McGuire about paying $50,000 to see a female AFL journalist held under water “disparaging and insulting”.

McGuire made the comments on radio station Triple M last Monday, during 'the Big Freeze at the G', where celebrities slide into ice water to raise cash for Motor Neurone Disease.

Discussing next year’s fundraiser, McGuire said: "In fact I reckon we should start the campaign for a one-person slide next year. (The Age journalist) Caroline Wilson. And I’ll put in 10 grand straight away — make it 20. And, if she stays under, 50."

"What do you reckon guys? Who else is up there? I know you’re in JB (commentator James Brayshaw)?"

Brayshaw replied: "No, yep, straight in."

Former St Kilda captain Danny Frawley then said he would "be in amongst it", before later saying "I’ll actually jump in and make sure she doesn’t, I’ll hold her under, Ed".

The comments went unnoticed until a transcript emerged on social media yesterday, coinciding with the AFL's White Ribbon weekend, aimed at highlighting violence against women.

He said although he had “broad powers” to sanction club presidents, his view was the right course of action was to call out the behaviour and seek an apology.

“I made the view of the AFL clear and I note Ed’s apology this morning,” McLachlan said.

“We’ll all have a view on a lot of aspects of this but the women who I’m listening to and the women I’ve been speaking to feel that the apology was legitimate and acceptable.”

Eddie McGuire at the Big Freeze at the G. (AAP)

The backlash comes as the AFL announced on Friday it had signed up to the Our Watch campaign which aims to stamp out ­violence against women.

McLachlan said the game had come a long way, with Our Watch, with women making up half of the supporter base and with the announcement of a women’s league to launch in 2017.

But he said “the conversation this week was a stark reminder to me of how much change is still required for women to feel truly welcomed in our code and reinforced my commitment to supporting change”.

“In the past we might have just ignored the comments as just part of the culture of footy,” he said.

“We might have said that Caroline is tough and resilient. Well it’s not good enough. We can’t say that we as an industry are committed to making and leading change if we don’t step up and call it out.

“Words and jokes have incredible power. The fact that the comments were made on radio a week ago and were not called out is an indictment on everyone working in football.

“The fact that we can argue that this may have been done in jest shows a lack in understanding of this issue.

“I understand that the men who made these comments feel horrified that they could be construed as creating an environment that makes sexist behaviours or a culture of violence against women more acceptable.

"But the truth is these kind of comments do. The statistics and data say so.”

McGuire said while the comments were meant to be light-hearted, he understood why there had been a backlash.

"I'm sorry that's how it was perceived ... Anything that can be perceived to promulgate domestic violence is abhorrent, full stop," he told TODAY host Karl Stefanovic this morning.

"One woman a week still gets murdered in domestic violence situations. We can’t let this happen.

"We go out and do a lot of things in the community but we need to do more. We have to be leaders in it, that’s where it starts and finishes."

Danny Frawley also apologised, saying the comments were "insensitive" and "a poor attempt at humour".

James Brayshaw is set to address the furore on his radio show The Rush Hour this afternoon.